Alliant Energy subsidiary Wisconsin Power and Light Company (WPL) has commenced commercial operations at its Bent Tree Wind Farm in Minnesota, US.

The wind farm is WPL’s second operated and owned wind farm, and comprises 122 turbines with a capability of producing up to 201MW of emissions-free wind energy, enough to power about 50,000 households.

WPL president John Larsen said that the addition of Bent Tree has enabled the company to meet and exceed Wisconsin’s existing Renewable Portfolio Standard.

WPL’s first wind farm, the Cedar Ridge Wind Farm, is a 68MW wind farm in Fond du Lac County, which commenced operation in 2008.